Gaya APA
Heath, Robert L. (2013).
Encyclopedia of Public Relations Vol 1 (2th).
:
SAGE Publications.
Gaya Chicago
Heath, Robert L.
Encyclopedia of Public Relations Vol 1.
2th
:
SAGE Publications,
2013.
Text.
Gaya MLA
Heath, Robert L.
Encyclopedia of Public Relations Vol 1.
2th
:
SAGE Publications,
2013.
Text.
Gaya Turabian
Heath, Robert L.
Encyclopedia of Public Relations Vol 1.
2th
:
SAGE Publications,
2013.
Print.